[Libreoffice-bugs] [Bug 141623] New: Qt5 refresh problem when starting LO start center and cairo (text) rendering ennabled

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141623

            Bug ID: 141623
           Summary: Qt5 refresh problem when starting LO start center and
                    cairo (text) rendering ennabled
           Product: LibreOffice
           Version: 7.0.3.1 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: minor
          Priority: medium
         Component: graphics stack
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: glogow at fbihome.de

Description:
While getting rid of the duplicate KF5SalFrame::AcquireGraphics code, I noticed
that starting LO via start center / desktop now seemed to have a refresh
problem. 

Took me a bit to realize, that these actually also must happen with Qt5 and
Cairo. This doesn't happen when a LO module is directly started, which is
probably one reason, it wasn't yet reported. I just have a 7.1 and 7.2 bibisect
repo around. At least 7.0.3 in the releases bibisect shows the same problem.

Manually resizing the window, fixes the problem. Or just starting any other LO
module directly.

Steps to Reproduce:
1. SAL_VCL_QT5_USE_CAIRO=1 SAL_USE_VCLPLUGIN=qt5 soffice

Actual Results:
Just a part of the start center is drawn.

Expected Results:
The whole start center is drawn.


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Version: 7.0.3.1
Build ID: d7547858d014d4cf69878db179d326fc3483e082
CPU threads: 8; OS: Linux 4.19; UI render: default; VCL: qt5+cairo
Locale: de-DE (de_DE.UTF-8); UI: en-US
Calc: threaded

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